Results 91 to 100 of about 74,781 (241)

Properties of a Ni(sub 19.5)Pd(sub 30)Ti(sub 50.5) high-temperature shape memory alloy in tension and compression [PDF]

open access: yes
Potential applications involving high-temperature shape memory alloys have been growing in recent years. Even in those cases where promising new alloys have been identified, the knowledge base for such materials contains gaps crucial to their maturation ...
Bigelow, Glen   +5 more
core   +1 more source

Structural phase transformations and shape memory effect in ZrCu along with Ni and Hf additions

open access: yesMATEC Web of Conferences, 2015
Ni replacement of Cu in ZrCu high temperature shape memory alloy results in the increase of the temperatures of the martensitic transformation (MT) [1]. Once the Ni content reaches 20 at.%, the temperatures of MT are becoming higher than the temperature ...
Kosorukova Tetiana   +5 more
doaj   +1 more source

Fabrication and Shape Memory Characteristics of Highly Porous Ti-Nb-Mo Biomaterials

open access: yesArchives of Metallurgy and Materials, 2017
Non-toxic Ti-Nb-Mo scaffolds were fabricated by sintering rapidly solidified alloy fibers for biomedical applications. Microstructure and martensitic transformation behaviors of the porous scaffolds were investigated by means of differential scanning ...
Kim Y.-W., Mukarati T.W.
doaj   +1 more source

A finite element method for thermo-mechanical coupling analysis of shape memory alloys [PDF]

open access: yes, 2013
Due to strong thermo-mechanical coupling in shape memory alloys (SMAs), heat generation/absorption during forward/reverse phase transformation can cause temperature variations in the material; influencing its mechanical behaviour.
Ahmadian, H., Mohammadi, S.
core  

Influence of Fe on shape memory effect of Ni-Mn-Ga alloy microwire

open access: yesCailiao gongcheng
The shape memory effect of alloy microwire with Fe replacing Ga based on Ni-Mn-Ga alloy microwire was analyzed. Ni-Mn-Ga-Fe alloy was prepared by vacuum tungsten arc melting furnace and the parent alloy was prepared by a high vacuum precision melt ...
LIU Yanfen   +4 more
doaj   +1 more source

Diffraction Investigations of High Temperature Shape Memory Alloys

open access: yes, 2013
Shape memory alloys are intermetallic materials with a unique ability to revert to a predefined physical shape by virtue of diffusionless transformations. Recent interest by aerospace and automotive industries to exploit the functionalities of these materials in future energy efficient designs has renewed scientific research in this field. However, the
openaire   +3 more sources

Surface Integrity Characteristics of NiTiHf High Temperature Shape Memory Alloys

open access: yes, 2019
This present study focuses on the surface integrity characteristics of the machined NiTiHf high temperature shape memory alloys. The NiTiHf specimens were machined under dry, minimum quantity lubrication (MQL) and cryogenic cooling at two different cutting speeds.
Yusuf Kaynak   +2 more
openaire   +2 more sources

Structural, Magnetic and Magneto-caloric studies of Ni50Mn30Sn20Shape Memory Alloy

open access: yes, 2015
We have synthesized a nominal composition of Ni50Mn30Sn20 alloy using arc melting technique. Rietveld refinement confirms the austenite L21 structure in Fm-3m space group.
Agarwal, S. K.   +4 more
core  

Explicit finite element implementation of a shape memory alloy constitutive model and associated analyses [PDF]

open access: yes, 2017
Shape memory alloys (SMA) represent an important class of smart metallic materials employed in various innovative applications thanks to their unique thermomechanical behavior.
Auricchio, F.   +5 more
core  

Enhancing shape recoverable ratio in (Ni50.1Ti34.9Hf15)85Nb15 high-temperature shape memory alloy by thermal-mechanical treatments

open access: yesMaterials Research Letters
The low shape recoverable ratio in NiTiHf high-temperature shape memory alloys was mainly attributed to dislocation generation due to low matrix strength.
Ji Zhang   +5 more
doaj   +1 more source

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